Twentieth century hand-book for steam engineers and electricians with questions and answers; a practical non-technical treatise .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 1467
ion. 1438 Steam Engineering If the blue solution of copper sulphate ever touches thezinc it will copper plate it at once. The cell will then havetwo copper elements and stop working. Cells should be given some attention, and clever manage-ment will keep a gravity cell working continuously for… … Fig. 685dixfrevilles wasteless ZINtJ 4 feet locLg and V2 an inch wide^, coiled like a clock spring.Zincs shaped like Fig. 685 are used until the prongs are alleaten off. A new one is then put in service and the oldone jammed into the bottom of the new one as shown inFig. 686. These zincs are hung…
